Physical activity, sedentary behaviour and physical self-perceptions in adolescent girls: a mediation analysis
Article
Article Title | Physical activity, sedentary behaviour and physical self-perceptions in adolescent girls: a mediation analysis |
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ERA Journal ID | 124616 |
Article Category | Article |
Authors | Webb, Oliver J. (Author), Benjamin, Charlotte C. (Author), Gammon, Catherine (Author), McKee, Heather C. (Author) and Biddle, Stuart J. H. (Author) |
Journal Title | Mental Health and Physical Activity |
Journal Citation | 6 (1), pp. 24-29 |
Number of Pages | 6 |
Year | 2013 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 1755-2966 |
1878-0199 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.mhpa.2012.08.005 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1755296612000518 |
Abstract | Objective: Few studies have examined the relationship between sedentary behaviour (SB) and mental well-being. This study assessed whether SB is associated with physical self-perceptions, independent of participation in moderate-to-vigorous physical activity (MVPA). Previous studies in this area simultaneously entered measures of SB and MVPA as predictors in regression models. In a novel approach, this study used mediation analyses to avoid problems of collinearity between SB and MVPA. Design: Cross-sectional. Setting: School-based. Method: Adolescent females (N = 238) used validated instruments to self-report time spent in SB and MVPA on the previous day, and to provide ratings for physical self-perceptions. Where a self-perception variable was associated with SB, Baron and Kenny's method was used to test if the relationship was mediated by MVPA. Results: There were small direct associations between SB and two self-perceptions, which were not mediated by MVPA: 'sports competence' (-.022) and 'physical conditioning' (-.023). There was also a negative association between SB and perceived 'physical strength', which, by contrast, was mediated by MVPA. Conclusion: Results for selected self-perceptions indicate that SB may be important to aspects of mental well-being independent of MVPA engagement. Future studies should use longitudinal and prospective designs to (a) assess the causality and direction of associations between SB and self-perceptions; (b) explore how individual SBs relate to self-perceptions; and (c) establish if the magnitude of these associations is clinically relevant. © 2012 Elsevier Ltd. All rights reserved. |
Keywords | Physical activity; Physical self-perceptions; Sedentary behaviour; Public Health, Social Medicine and Epidemiology; Neurology and Neurosurgery; |
ANZSRC Field of Research 2020 | 420702. Exercise physiology |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Loughborough University, United Kingdom |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q41zx/physical-activity-sedentary-behaviour-and-physical-self-perceptions-in-adolescent-girls-a-mediation-analysis
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